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Diffstat (limited to 'src/include/ipxe/efi/Protocol/Dhcp6.h')
| -rw-r--r-- | src/include/ipxe/efi/Protocol/Dhcp6.h | 782 |
1 files changed, 782 insertions, 0 deletions
diff --git a/src/include/ipxe/efi/Protocol/Dhcp6.h b/src/include/ipxe/efi/Protocol/Dhcp6.h new file mode 100644 index 00000000..19f59086 --- /dev/null +++ b/src/include/ipxe/efi/Protocol/Dhcp6.h @@ -0,0 +1,782 @@ +/** @file + UEFI Dynamic Host Configuration Protocol 6 Definition, which is used to get IPv6 + addresses and other configuration parameters from DHCPv6 servers. + + Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR> + SPDX-License-Identifier: BSD-2-Clause-Patent + + @par Revision Reference: + This Protocol is introduced in UEFI Specification 2.2 + +**/ + +#ifndef __EFI_DHCP6_PROTOCOL_H__ +#define __EFI_DHCP6_PROTOCOL_H__ + +FILE_LICENCE ( BSD2_PATENT ); + +#define EFI_DHCP6_PROTOCOL_GUID \ + { \ + 0x87c8bad7, 0x595, 0x4053, {0x82, 0x97, 0xde, 0xde, 0x39, 0x5f, 0x5d, 0x5b } \ + } + +#define EFI_DHCP6_SERVICE_BINDING_PROTOCOL_GUID \ + { \ + 0x9fb9a8a1, 0x2f4a, 0x43a6, {0x88, 0x9c, 0xd0, 0xf7, 0xb6, 0xc4, 0x7a, 0xd5 } \ + } + +typedef struct _EFI_DHCP6_PROTOCOL EFI_DHCP6_PROTOCOL; + +typedef enum { + /// + /// The EFI DHCPv6 Protocol instance is configured, and start() needs + /// to be called + /// + Dhcp6Init = 0x0, + /// + /// A Solicit packet is sent out to discover DHCPv6 server, and the EFI + /// DHCPv6 Protocol instance is collecting Advertise packets. + /// + Dhcp6Selecting = 0x1, + /// + /// A Request is sent out to the DHCPv6 server, and the EFI DHCPv6 + /// Protocol instance is waiting for Reply packet. + /// + Dhcp6Requesting = 0x2, + /// + /// A Decline packet is sent out to indicate one or more addresses of the + /// configured IA are in use by another node, and the EFI DHCPv6. + /// Protocol instance is waiting for Reply packet. + /// + Dhcp6Declining = 0x3, + /// + /// A Confirm packet is sent out to confirm the IPv6 addresses of the + /// configured IA, and the EFI DHCPv6 Protocol instance is waiting for Reply packet. + /// + Dhcp6Confirming = 0x4, + /// + /// A Release packet is sent out to release one or more IPv6 addresses of + /// the configured IA, and the EFI DHCPv6 Protocol instance is waiting for Reply packet. + /// + Dhcp6Releasing = 0x5, + /// + /// The DHCPv6 S.A.R.R process is completed for the configured IA. + /// + Dhcp6Bound = 0x6, + /// + /// A Renew packet is sent out to extend lifetime for the IPv6 addresses of + /// the configured IA, and the EFI DHCPv6 Protocol instance is waiting for Reply packet. + /// + Dhcp6Renewing = 0x7, + /// + /// A Rebind packet is sent out to extend lifetime for the IPv6 addresses of + /// the configured IA, and the EFI DHCPv6 Protocol instance is waiting for Reply packet. + /// + Dhcp6Rebinding = 0x8 +} EFI_DHCP6_STATE; + +typedef enum { + /// + /// A Solicit packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6SendSolicit = 0x0, + /// + /// An Advertise packet is received and will be passed to Dhcp6Callback. + /// + Dhcp6RcvdAdvertise = 0x1, + /// + /// It is time for Dhcp6Callback to determine whether select the default Advertise + /// packet by RFC 3315 policy, or overwrite it by specific user policy. + /// + Dhcp6SelectAdvertise = 0x2, + /// + /// A Request packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6SendRequest = 0x3, + /// + /// A Reply packet is received and will be passed to Dhcp6Callback. + /// + Dhcp6RcvdReply = 0x4, + /// + /// A Reconfigure packet is received and will be passed to Dhcp6Callback. + /// + Dhcp6RcvdReconfigure = 0x5, + /// + /// A Decline packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6SendDecline = 0x6, + /// + /// A Confirm packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6SendConfirm = 0x7, + /// + /// A Release packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6SendRelease = 0x8, + /// + /// A Renew packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6EnterRenewing = 0x9, + /// + /// A Rebind packet is about to be sent. The packet is passed to Dhcp6Callback and + /// can be modified or replaced in Dhcp6Callback. + /// + Dhcp6EnterRebinding = 0xa +} EFI_DHCP6_EVENT; + +/// +/// An IA which carries assigned not temporary address. +/// +#define EFI_DHCP6_IA_TYPE_NA 3 +/// +/// An IA which carries assigned temporary address. +/// +#define EFI_DHCP6_IA_TYPE_TA 4 + +#pragma pack(1) +/// +/// EFI_DHCP6_PACKET_OPTION +/// defines the format of the DHCPv6 option, See RFC 3315 for more information. +/// This data structure is used to reference option data that is packed in the DHCPv6 packet. +/// +typedef struct { + /// + /// The DHCPv6 option code, stored in network order. + /// + UINT16 OpCode; + /// + /// Length of the DHCPv6 option data, stored in network order. + /// From the first byte to the last byte of the Data field. + /// + UINT16 OpLen; + /// + /// The data for the DHCPv6 option, stored in network order. + /// + UINT8 Data[1]; +} EFI_DHCP6_PACKET_OPTION; + +/// +/// EFI_DHCP6_HEADER +/// defines the format of the DHCPv6 header. See RFC 3315 for more information. +/// +typedef struct { + /// + /// The DHCPv6 transaction ID. + /// + UINT32 MessageType : 8; + /// + /// The DHCPv6 message type. + /// + UINT32 TransactionId : 24; +} EFI_DHCP6_HEADER; + +/// +/// EFI_DHCP6_PACKET +/// defines the format of the DHCPv6 packet. See RFC 3315 for more information. +/// +typedef struct { + /// + /// Size of the EFI_DHCP6_PACKET buffer. + /// + UINT32 Size; + /// + /// Length of the EFI_DHCP6_PACKET from the first byte of the Header field to the last + /// byte of the Option[] field. + /// + UINT32 Length; + struct { + /// + /// The DHCPv6 packet header. + /// + EFI_DHCP6_HEADER Header; + /// + /// Start of the DHCPv6 packed option data. + /// + UINT8 Option[1]; + } Dhcp6; +} EFI_DHCP6_PACKET; + +#pragma pack() + +typedef struct { + /// + /// Length of DUID in octects. + /// + UINT16 Length; + /// + /// Array of DUID octects. + /// + UINT8 Duid[1]; +} EFI_DHCP6_DUID; + +typedef struct { + /// + /// Initial retransmission timeout. + /// + UINT32 Irt; + /// + /// Maximum retransmission count for one packet. If Mrc is zero, there's no upper limit + /// for retransmission count. + /// + UINT32 Mrc; + /// + /// Maximum retransmission timeout for each retry. It's the upper bound of the number of + /// retransmission timeout. If Mrt is zero, there is no upper limit for retransmission + /// timeout. + /// + UINT32 Mrt; + /// + /// Maximum retransmission duration for one packet. It's the upper bound of the numbers + /// the client may retransmit a message. If Mrd is zero, there's no upper limit for + /// retransmission duration. + /// + UINT32 Mrd; +} EFI_DHCP6_RETRANSMISSION; + +typedef struct { + /// + /// The IPv6 address. + /// + EFI_IPv6_ADDRESS IpAddress; + /// + /// The preferred lifetime in unit of seconds for the IPv6 address. + /// + UINT32 PreferredLifetime; + /// + /// The valid lifetime in unit of seconds for the IPv6 address. + /// + UINT32 ValidLifetime; +} EFI_DHCP6_IA_ADDRESS; + +typedef struct { + UINT16 Type; ///< Type for an IA. + UINT32 IaId; ///< The identifier for an IA. +} EFI_DHCP6_IA_DESCRIPTOR; + +typedef struct { + /// + /// The descriptor for IA. + /// + EFI_DHCP6_IA_DESCRIPTOR Descriptor; + /// + /// The state of the configured IA. + /// + EFI_DHCP6_STATE State; + /// + /// Pointer to the cached latest Reply packet. May be NULL if no packet is cached. + /// + EFI_DHCP6_PACKET *ReplyPacket; + /// + /// Number of IPv6 addresses of the configured IA. + /// + UINT32 IaAddressCount; + /// + /// List of the IPv6 addresses of the configured IA. When the state of the configured IA is + /// in Dhcp6Bound, Dhcp6Renewing and Dhcp6Rebinding, the IPv6 addresses are usable. + /// + EFI_DHCP6_IA_ADDRESS IaAddress[1]; +} EFI_DHCP6_IA; + +typedef struct { + /// + /// Pointer to the DHCPv6 unique identifier. The caller is responsible for freeing this buffer. + /// + EFI_DHCP6_DUID *ClientId; + /// + /// Pointer to the configured IA of current instance. The caller can free this buffer after + /// using it. + /// + EFI_DHCP6_IA *Ia; +} EFI_DHCP6_MODE_DATA; + +/** + EFI_DHCP6_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol instance to + intercept events that occurs in the DHCPv6 S.A.R.R process. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance that is used to configure this + callback function. + @param[in] Context Pointer to the context that is initialized by EFI_DHCP6_PROTOCOL.Configure(). + @param[in] CurrentState The current state of the configured IA. + @param[in] Dhcp6Event The event that occurs in the current state, which usually means a state transition. + @param[in] Packet Pointer to the DHCPv6 packet that is about to be sent or has been received. + The EFI DHCPv6 Protocol instance is responsible for freeing the buffer. + @param[out] NewPacket Pointer to the new DHCPv6 packet to overwrite the Packet. NewPacket can not + share the buffer with Packet. If *NewPacket is not NULL, the EFI DHCPv6 + Protocol instance is responsible for freeing the buffer. + + @retval EFI_SUCCESS Tell the EFI DHCPv6 Protocol instance to continue the DHCPv6 S.A.R.R process. + @retval EFI_ABORTED Tell the EFI DHCPv6 Protocol instance to abort the DHCPv6 S.A.R.R process, + and the state of the configured IA will be transferred to Dhcp6Init. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_CALLBACK)( + IN EFI_DHCP6_PROTOCOL *This, + IN VOID *Context, + IN EFI_DHCP6_STATE CurrentState, + IN EFI_DHCP6_EVENT Dhcp6Event, + IN EFI_DHCP6_PACKET *Packet, + OUT EFI_DHCP6_PACKET **NewPacket OPTIONAL + ); + +typedef struct { + /// + /// The callback function is to intercept various events that occur in the DHCPv6 S.A.R.R + /// process. Set to NULL to ignore all those events. + /// + EFI_DHCP6_CALLBACK Dhcp6Callback; + /// + /// Pointer to the context that will be passed to Dhcp6Callback. + /// + VOID *CallbackContext; + /// + /// Number of the DHCPv6 options in the OptionList. + /// + UINT32 OptionCount; + /// + /// List of the DHCPv6 options to be included in Solicit and Request packet. The buffer + /// can be freed after EFI_DHCP6_PROTOCOL.Configure() returns. Ignored if + /// OptionCount is zero. OptionList should not contain Client Identifier option + /// and any IA option, which will be appended by EFI DHCPv6 Protocol instance + /// automatically. + /// + EFI_DHCP6_PACKET_OPTION **OptionList; + /// + /// The descriptor for the IA of the EFI DHCPv6 Protocol instance. + /// + EFI_DHCP6_IA_DESCRIPTOR IaDescriptor; + /// + /// If not NULL, the event will be signaled when any IPv6 address information of the + /// configured IA is updated, including IPv6 address, preferred lifetime and valid + /// lifetime, or the DHCPv6 S.A.R.R process fails. Otherwise, Start(), + /// renewrebind(), decline(), release() and stop() will be blocking + /// operations, and they will wait for the exchange process completion or failure. + /// + EFI_EVENT IaInfoEvent; + /// + /// If TRUE, the EFI DHCPv6 Protocol instance is willing to accept Reconfigure packet. + /// Otherwise, it will ignore it. Reconfigure Accept option can not be specified through + /// OptionList parameter. + /// + BOOLEAN ReconfigureAccept; + /// + /// If TRUE, the EFI DHCPv6 Protocol instance will send Solicit packet with Rapid + /// Commit option. Otherwise, Rapid Commit option will not be included in Solicit + /// packet. Rapid Commit option can not be specified through OptionList parameter. + /// + BOOLEAN RapidCommit; + /// + /// Parameter to control Solicit packet retransmission behavior. The + /// buffer can be freed after EFI_DHCP6_PROTOCOL.Configure() returns. + /// + EFI_DHCP6_RETRANSMISSION *SolicitRetransmission; +} EFI_DHCP6_CONFIG_DATA; + +/** + EFI_DHCP6_INFO_CALLBACK is provided by the consumer of the EFI DHCPv6 Protocol + instance to intercept events that occurs in the DHCPv6 Information Request exchange process. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance that is used to configure this + callback function. + @param[in] Context Pointer to the context that is initialized in the EFI_DHCP6_PROTOCOL.InfoRequest(). + @param[in] Packet Pointer to Reply packet that has been received. The EFI DHCPv6 Protocol instance is + responsible for freeing the buffer. + + @retval EFI_SUCCESS Tell the EFI DHCPv6 Protocol instance to finish Information Request exchange process. + @retval EFI_NOT_READY Tell the EFI DHCPv6 Protocol instance to continue Information Request exchange process. + @retval EFI_ABORTED Tell the EFI DHCPv6 Protocol instance to abort the Information Request exchange process. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_INFO_CALLBACK)( + IN EFI_DHCP6_PROTOCOL *This, + IN VOID *Context, + IN EFI_DHCP6_PACKET *Packet + ); + +/** + Retrieve the current operating mode data and configuration data for the EFI DHCPv6 Protocol instance. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + @param[out] Dhcp6ModeData Pointer to the DHCPv6 mode data structure. The caller is responsible for freeing this + structure and each reference buffer. + @param[out] Dhcp6ConfigData Pointer to the DHCPv6 configuration data structure. The caller is responsible for + freeing this structure and each reference buffer. + + @retval EFI_SUCCESS The mode data was returned. + @retval EFI_ACCESS_DENIED The EFI DHCPv6 Protocol instance has not been configured when Dhcp6ConfigData is not NULL. + @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE: + - This is NULL. + - Both Dhcp6ConfigData and Dhcp6ModeData are NULL. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_GET_MODE_DATA)( + IN EFI_DHCP6_PROTOCOL *This, + OUT EFI_DHCP6_MODE_DATA *Dhcp6ModeData OPTIONAL, + OUT EFI_DHCP6_CONFIG_DATA *Dhcp6ConfigData OPTIONAL + ); + +/** + Initialize or clean up the configuration data for the EFI DHCPv6 Protocol instance. + + The Configure() function is used to initialize or clean up the configuration data of the EFI + DHCPv6 Protocol instance. + - When Dhcp6CfgData is not NULL and Configure() is called successfully, the + configuration data will be initialized in the EFI DHCPv6 Protocol instance and the state of the + configured IA will be transferred into Dhcp6Init. + - When Dhcp6CfgData is NULL and Configure() is called successfully, the configuration + data will be cleaned up and no IA will be associated with the EFI DHCPv6 Protocol instance. + + To update the configuration data for an EFI DCHPv6 Protocol instance, the original data must be + cleaned up before setting the new configuration data. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + @param[in] Dhcp6CfgData Pointer to the DHCPv6 configuration data structure. + + @retval EFI_SUCCESS The mode data was returned. + @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE + - This is NULL. + - OptionCount > 0 and OptionList is NULL. + - OptionList is not NULL, and Client Id option, Reconfigure Accept option, + Rapid Commit option or any IA option is specified in the OptionList. + - IaDescriptor.Type is neither EFI_DHCP6_IA_TYPE_NA nor EFI_DHCP6_IA_TYPE_NA. + - IaDescriptor is not unique. + - Both IaInfoEvent and SolicitRetransimssion are NULL. + - SolicitRetransmission is not NULL, and both SolicitRetransimssion->Mrc and + SolicitRetransmission->Mrd are zero. + @retval EFI_ACCESS_DENIED The EFI DHCPv6 Protocol instance has been already configured + when Dhcp6CfgData is not NULL. + The EFI DHCPv6 Protocol instance has already started the + DHCPv6 S.A.R.R when Dhcp6CfgData is NULL. + @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated. + @retval EFI_DEVICE_ERROR An unexpected system or network error occurred. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_CONFIGURE)( + IN EFI_DHCP6_PROTOCOL *This, + IN EFI_DHCP6_CONFIG_DATA *Dhcp6CfgData OPTIONAL + ); + +/** + Start the DHCPv6 S.A.R.R process. + + The Start() function starts the DHCPv6 S.A.R.R process. This function can be called only when + the state of the configured IA is in the Dhcp6Init state. If the DHCPv6 S.A.R.R process completes + successfully, the state of the configured IA will be transferred through Dhcp6Selecting and + Dhcp6Requesting to Dhcp6Bound state. The update of the IPv6 addresses will be notified through + EFI_DHCP6_CONFIG_DATA.IaInfoEvent. At the time when each event occurs in this process, the + callback function set by EFI_DHCP6_PROTOCOL.Configure() will be called and the user can take + this opportunity to control the process. If EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL, the + Start() function call is a blocking operation. It will return after the DHCPv6 S.A.R.R process + completes or aborted by users. If the process is aborted by system or network error, the state of + the configured IA will be transferred to Dhcp6Init. The Start() function can be called again to + restart the process. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + + @retval EFI_SUCCESS The DHCPv6 S.A.R.R process is completed and at least one IPv6 + address has been bound to the configured IA when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL. + The DHCPv6 S.A.R.R process is started when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL. + @retval EFI_ACCESS_DENIED The EFI DHCPv6 Child instance hasn't been configured. + @retval EFI_INVALID_PARAMETER This is NULL. + @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated. + @retval EFI_ALREADY_STARTED The DHCPv6 S.A.R.R process has already started. + @retval EFI_DEVICE_ERROR An unexpected network or system error occurred. + @retval EFI_NO_RESPONSE The DHCPv6 S.A.R.R process failed because of no response. + @retval EFI_NO_MAPPING No IPv6 address has been bound to the configured IA after the + DHCPv6 S.A.R.R process. + @retval EFI_ABORTED The DHCPv6 S.A.R.R process aborted by user. + @retval EFI_NO_MEDIA There was a media error. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_START)( + IN EFI_DHCP6_PROTOCOL *This + ); + +/** + Request configuration information without the assignment of any IA addresses of the client. + + The InfoRequest() function is used to request configuration information without the assignment + of any IPv6 address of the client. Client sends out Information Request packet to obtain + the required configuration information, and DHCPv6 server responds with Reply packet containing + the information for the client. The received Reply packet will be passed to the user by + ReplyCallback function. If user returns EFI_NOT_READY from ReplyCallback, the EFI DHCPv6 + Protocol instance will continue to receive other Reply packets unless timeout according to + the Retransmission parameter. Otherwise, the Information Request exchange process will be + finished successfully if user returns EFI_SUCCESS from ReplyCallback. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + @param[in] SendClientId If TRUE, the EFI DHCPv6 Protocol instance will build Client + Identifier option and include it into Information Request + packet. If FALSE, Client Identifier option will not be included. + Client Identifier option can not be specified through OptionList + parameter. + @param[in] OptionRequest Pointer to the Option Request option in the Information Request + packet. Option Request option can not be specified through + OptionList parameter. + @param[in] OptionCount Number of options in OptionList. + @param[in] OptionList List of other DHCPv6 options. These options will be appended + to the Option Request option. The caller is responsible for + freeing this buffer. Type is defined in EFI_DHCP6_PROTOCOL.GetModeData(). + @param[in] Retransmission Parameter to control Information Request packet retransmission + behavior. The buffer can be freed after EFI_DHCP6_PROTOCOL.InfoRequest() + returns. + @param[in] TimeoutEvent If not NULL, this event is signaled when the information request + exchange aborted because of no response. If NULL, the function + call is a blocking operation; and it will return after the + information-request exchange process finish or aborted by users. + @param[in] ReplyCallback The callback function is to intercept various events that occur + in the Information Request exchange process. It should not be + set to NULL. + @param[in] CallbackContext Pointer to the context that will be passed to ReplyCallback. + + @retval EFI_SUCCESS The DHCPv6 S.A.R.R process is completed and at least one IPv6 + @retval EFI_SUCCESS The DHCPv6 information request exchange process completed + when TimeoutEvent is NULL. Information Request packet has been + sent to DHCPv6 server when TimeoutEvent is not NULL. + @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE: + - This is NULL. + - OptionRequest is NULL or OptionRequest->OpCode is invalid. + - OptionCount > 0 and OptionList is NULL. + - OptionList is not NULL, and Client Identify option or + Option Request option is specified in the OptionList. + - Retransimssion is NULL. + - Both Retransimssion->Mrc and Retransmission->Mrd are zero. + - ReplyCallback is NULL. + @retval EFI_DEVICE_ERROR An unexpected network or system error occurred. + @retval EFI_NO_RESPONSE The DHCPv6 information request exchange process failed + because of no response, or not all requested-options are + responded by DHCPv6 servers when Timeout happened. + @retval EFI_ABORTED The DHCPv6 information request exchange process aborted by user. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_INFO_REQUEST)( + IN EFI_DHCP6_PROTOCOL *This, + IN BOOLEAN SendClientId, + IN EFI_DHCP6_PACKET_OPTION *OptionRequest, + IN UINT32 OptionCount, + IN EFI_DHCP6_PACKET_OPTION *OptionList[] OPTIONAL, + IN EFI_DHCP6_RETRANSMISSION *Retransmission, + IN EFI_EVENT TimeoutEvent OPTIONAL, + IN EFI_DHCP6_INFO_CALLBACK ReplyCallback, + IN VOID *CallbackContext OPTIONAL + ); + +/** + Manually extend the valid and preferred lifetimes for the IPv6 addresses of the configured + IA and update other configuration parameters by sending Renew or Rebind packet. + + The RenewRebind() function is used to manually extend the valid and preferred lifetimes for the + IPv6 addresses of the configured IA and update other configuration parameters by sending Renew or + Rebind packet. + - When RebindRequest is FALSE and the state of the configured IA is Dhcp6Bound, it + will send Renew packet to the previously DHCPv6 server and transfer the state of the configured + IA to Dhcp6Renewing. If valid Reply packet received, the state transfers to Dhcp6Bound + and the valid and preferred timer restarts. If fails, the state transfers to Dhcp6Bound but the + timer continues. + - When RebindRequest is TRUE and the state of the configured IA is Dhcp6Bound, it will + send Rebind packet. If valid Reply packet received, the state transfers to Dhcp6Bound and the + valid and preferred timer restarts. If fails, the state transfers to Dhcp6Init and the IA can't + be used. + + @param[in] This Pointer to the EFI_DHCP4_PROTOCOL instance. + @param[in] RebindRequest If TRUE, it will send Rebind packet and enter the Dhcp6Rebinding state. + Otherwise, it will send Renew packet and enter the Dhcp6Renewing state. + + @retval EFI_SUCCESS The DHCPv6 renew/rebind exchange process has completed and at + least one IPv6 address of the configured IA has been bound again + when EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL. + The EFI DHCPv6 Protocol instance has sent Renew or Rebind packet + when EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL. + @retval EFI_ACCESS_DENIED The EFI DHCPv6 Child instance hasn't been configured, or the state + of the configured IA is not in Dhcp6Bound. + @retval EFI_ALREADY_STARTED The state of the configured IA has already entered Dhcp6Renewing + when RebindRequest is FALSE. + The state of the configured IA has already entered Dhcp6Rebinding + when RebindRequest is TRUE. + @retval EFI_INVALID_PARAMETER This is NULL. + @retval EFI_DEVICE_ERROR An unexpected system or system error occurred. + @retval EFI_NO_RESPONSE The DHCPv6 renew/rebind exchange process failed because of no response. + @retval EFI_NO_MAPPING No IPv6 address has been bound to the configured IA after the DHCPv6 + renew/rebind exchange process. + @retval EFI_ABORTED The DHCPv6 renew/rebind exchange process aborted by user. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_RENEW_REBIND)( + IN EFI_DHCP6_PROTOCOL *This, + IN BOOLEAN RebindRequest + ); + +/** + Inform that one or more IPv6 addresses assigned by a server are already in use by + another node. + + The Decline() function is used to manually decline the assignment of IPv6 addresses, which + have been already used by another node. If all IPv6 addresses of the configured IA are declined + through this function, the state of the IA will switch through Dhcp6Declining to Dhcp6Init, + otherwise, the state of the IA will restore to Dhcp6Bound after the declining process. The + Decline() can only be called when the IA is in Dhcp6Bound state. If the + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL, this function is a blocking operation. It + will return after the declining process finishes, or aborted by user. + + @param[in] This Pointer to the EFI_DHCP4_PROTOCOL instance. + @param[in] AddressCount Number of declining IPv6 addresses. + @param[in] Addresses Pointer to the buffer stored all the declining IPv6 addresses. + + @retval EFI_SUCCESS The DHCPv6 decline exchange process has completed when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL. + The EFI DHCPv6 Protocol instance has sent Decline packet when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL. + @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE + - This is NULL. + - AddressCount is zero or Addresses is NULL. + @retval EFI_NOT_FOUND Any specified IPv6 address is not correlated with the configured IA + for this instance. + @retval EFI_ACCESS_DENIED The EFI DHCPv6 Child instance hasn't been configured, or the + state of the configured IA is not in Dhcp6Bound. + @retval EFI_DEVICE_ERROR An unexpected network or system error occurred. + @retval EFI_ABORTED The DHCPv6 decline exchange process aborted by user. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_DECLINE)( + IN EFI_DHCP6_PROTOCOL *This, + IN UINT32 AddressCount, + IN EFI_IPv6_ADDRESS *Addresses + ); + +/** + Release one or more IPv6 addresses associated with the configured IA for current instance. + + The Release() function is used to manually release the one or more IPv6 address. If AddressCount + is zero, it will release all IPv6 addresses of the configured IA. If all IPv6 addresses of the IA + are released through this function, the state of the IA will switch through Dhcp6Releasing to + Dhcp6Init, otherwise, the state of the IA will restore to Dhcp6Bound after the releasing process. + The Release() can only be called when the IA is in Dhcp6Bound state. If the + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL, the function is a blocking operation. It will return + after the releasing process finishes, or aborted by user. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + @param[in] AddressCount Number of releasing IPv6 addresses. + @param[in] Addresses Pointer to the buffer stored all the releasing IPv6 addresses. + Ignored if AddressCount is zero. + @retval EFI_SUCCESS The DHCPv6 release exchange process has completed when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL. + The EFI DHCPv6 Protocol instance has sent Release packet when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL. + @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE + - This is NULL. + - AddressCount is not zero or Addresses is NULL. + @retval EFI_NOT_FOUND Any specified IPv6 address is not correlated with the configured + IA for this instance. + @retval EFI_ACCESS_DENIED The EFI DHCPv6 Child instance hasn't been configured, or the + state of the configured IA is not in Dhcp6Bound. + @retval EFI_DEVICE_ERROR An unexpected network or system error occurred. + @retval EFI_ABORTED The DHCPv6 release exchange process aborted by user. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_RELEASE)( + IN EFI_DHCP6_PROTOCOL *This, + IN UINT32 AddressCount, + IN EFI_IPv6_ADDRESS *Addresses + ); + +/** + Stop the DHCPv6 S.A.R.R process. + + The Stop() function is used to stop the DHCPv6 S.A.R.R process. If this function is called + successfully, all the IPv6 addresses of the configured IA will be released and the state of + the configured IA will be transferred to Dhcp6Init. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + + @retval EFI_SUCCESS The DHCPv6 S.A.R.R process has been stopped when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is NULL. + The EFI DHCPv6 Protocol instance has sent Release packet if + need release or has been stopped if needn't, when + EFI_DHCP6_CONFIG_DATA.IaInfoEvent is not NULL. + @retval EFI_INVALID_PARAMETER This is NULL. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_STOP)( + IN EFI_DHCP6_PROTOCOL *This + ); + +/** + Parse the option data in the DHCPv6 packet. + + The Parse() function is used to retrieve the option list in the DHCPv6 packet. + + @param[in] This Pointer to the EFI_DHCP6_PROTOCOL instance. + + @param[in] Packet Pointer to packet to be parsed. + @param[in] OptionCount On input, the number of entries in the PacketOptionList. + On output, the number of DHCPv6 options in the Packet. + @param[in] PacketOptionList List of pointers to the DHCPv6 options in the Packet. + The OpCode and OpLen in EFI_DHCP6_PACKET_OPTION are + both stored in network byte order. + @retval EFI_SUCCESS The packet was successfully parsed. + @retval EFI_INVALID_PARAMETER One or more following conditions are TRUE + - This is NULL. + - Packet is NULL. + - Packet is not a well-formed DHCPv6 packet. + - OptionCount is NULL. + - *OptionCount is not zero and PacketOptionList is NULL. + @retval EFI_BUFFER_TOO_SMALL *OptionCount is smaller than the number of options that were + found in the Packet. + +**/ +typedef +EFI_STATUS +(EFIAPI *EFI_DHCP6_PARSE)( + IN EFI_DHCP6_PROTOCOL *This, + IN EFI_DHCP6_PACKET *Packet, + IN OUT UINT32 *OptionCount, + OUT EFI_DHCP6_PACKET_OPTION *PacketOptionList[] OPTIONAL + ); + +/// +/// The EFI DHCPv6 Protocol is used to get IPv6 addresses and other configuration parameters +/// from DHCPv6 servers. +/// +struct _EFI_DHCP6_PROTOCOL { + EFI_DHCP6_GET_MODE_DATA GetModeData; + EFI_DHCP6_CONFIGURE Configure; + EFI_DHCP6_START Start; + EFI_DHCP6_INFO_REQUEST InfoRequest; + EFI_DHCP6_RENEW_REBIND RenewRebind; + EFI_DHCP6_DECLINE Decline; + EFI_DHCP6_RELEASE Release; + EFI_DHCP6_STOP Stop; + EFI_DHCP6_PARSE Parse; +}; + +extern EFI_GUID gEfiDhcp6ProtocolGuid; +extern EFI_GUID gEfiDhcp6ServiceBindingProtocolGuid; + +#endif |